Feature (FEAT) - KB Article #1476

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Synopsis
The FEAT command provides FTP clients with a mechanism of quickly determining what extended features the FTP server supports. If the FEAT command is supported, the server will reply with a multi-line response where each line of the response contains an extended feature command supported by the server.

Description
In the past, an FTP client would issue an extended command to the server and use the server's response code to determine whether or not it was supported. This is commonly seen when an FTP client issues a "REST 0" (restart) command after logging in to a server. The FEAT command eliminates the need for this type of trial-and-error discovery.